Loader Bobcat 773. Manual - part 84

FAN GEARBOX (Cont’d)

Disassembly

NOTE: When repairing the gearbox order the

following  as needed.

1.  Complete Assembly
2.  Long Housing Assembly
3.  Long Housing
4.  Short Housing Assembly (See Note Below)
5.  Internal Parts

NOTE: The short housing is only available as an

assembly. See the parts identification page
7–14 for reference. (Order parts from Melroe
Parts Sales.)

NOTE: Be sure to count the number and thickness of

shims during disassembly. Install the shims
in the original location during assembly.

NOTE: Always replace seals during assembly.

Replace the parts in the gearbox as needed.

Remove the fan and blower housing mounting plate. (See
Page 7–8.)

Long Housing

Loosen the set bolts (Item 1) [A] and remove the pulley
(Item 2) [A].

Remove the long key (Item 3) [A].

Remove the four mounting bolts and the part number tag
[B].

Remove the oil from the gearbox.

Drill an 1/8 inch (3 mm) hole in the seal. Use a slide
hammer tool to remove the seal [C].

Remove the small snap ring [D].

Wear safety goggles to prevent eye injury
when drilling or grinding.

W–2108–1186

AVOID INJURY OR DEATH

Revised June 01

A

P–03005

1

2

3

C

P–02999

D

P–02964

773 BICS Loader

–7–15–

Service Manual

B

P–02983

Part Number

Tag

FAN GEARBOX (Cont’d)

Disassembly (Cont’d)

Remove the small shims [A].

NOTE: The gear and the other bearing (pulley end)

will be removed with the shaft.

Remove the screw and washer from the shaft [B].

Support the lower flange and press the shaft from the
bearing [C].

Support the bearing and press the shaft from the bearing
[D].

Revised Jan. 99

A

P–02963

C

P–03004

D

P–03298

–7–16–

773 BICS Loader

Service Manual

B

P–02966

FAN GEARBOX (Cont’d)

Disassembly (Cont’d)

Short Housing

Remove the end cap [A].

Use care not to damage the housing.

Drill an 1/8 inch (3 mm) hole in the seal. Use a slide
hammer tool to remove the seal [B].

Remove the large snap ring from the flange end of the
housing [C].

Remove the large shims from the housing [D].

NOTE: Use the same size and thickness of shims

during assembly.

Wear safety goggles to prevent eye injury
when drilling or grinding.

W–2108–1186

AVOID INJURY OR DEATH

Revised Jan. 99

A

P–02997

C

P–02970

D

P–02969

773 BICS Loader

–7–17–

Service Manual

B

P–02996

FAN GEARBOX (Cont’d)

Disassembly (Cont’d)

Remove the screw and washer (Item 1) [A] from the
shaft.

Remove the snap ring from the cap end of the housing
[B].

Press the shaft from the housing [C].

NOTE: Both bearings may come out of the housing

with the shaft. If one bearing remains in the
housing use a non metal object to tap the
bearing from the housing.

Press the bearing from the tapered end of the shaft [D].

Revised Jan. 99

A

P–02978

1

C

P–02998

D

P–03088

–7–18–

773 BICS Loader

Service Manual

B

P–02973